Home / 11,651.99-16,079.31-6,872.51

Finding the Fourth Proportional to 11,651.99, 16,079.31 and 6,872.51

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Solution

The fourth proportional to 11,651.99, 16,079.31 and 6,872.51 is: 9,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.99 : 16,079.31 = 6,872.51 : x
  2. Step 2: Convert to fraction form
    11,651.99/16,079.31 = 6,872.51/x
  3. Step 3: Cross multiply
    11,651.99x = 16,079.31 × 6,872.51
  4. Step 4: Simplify right side
    11,651.99x = 110,505,258.97
  5. Step 5: Solve for x
    x = 110,505,258.97/11,651.99
  6. Step 6: Final answer
    x = 9,483.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.